Neuron Zettelkasten : Neuron is a future-proof open-source app for managing your plain-text notes in Zettelkasten style, as well as for publishing them on the web.
Arora : Arora is a lightweight cross-platform web browser. It's free (as in free speech and free beer). Arora runs on Linux, embedded Linux, FreeBSD, Mac OS X...
poche : poche is a self hosted read-it-later app. unlike to other services, poche is free and open source.
Sonar : Sonar is an open platform to manage code quality.
